Number of n X 2 0..2 arrays with row sums equal and column sums unequal to adjacent columns.

A203485

Number of n X 2 0..2 arrays with row sums equal and column sums unequal to adjacent columns.

Terms

    a(0) =6a(1) =10a(2) =36a(3) =82a(4) =256a(5) =676a(6) =2050a(7) =5826a(8) =17568a(9) =51640a(10) =155590a(11) =463996a(12) =1397766a(13) =4192646a(14) =12626836a(15) =37955426a(16) =114267376a(17) =343694728a(18) =1034313190a(19) =3111132672a(20) =9359196778a(21) =28146901826a(22) =84646727920a(23) =254509346220a(24) =765178882006

External references